171 lines
4.2 KiB
PHP
171 lines
4.2 KiB
PHP
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<?php
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/**
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* ownCloud
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*
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* @copyright (C) 2015 ownCloud, Inc.
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*
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* @author Bjoern Schiessle <schiessle@owncloud.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace OC\Encryption;
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use OCP\Encryption\IEncryptionModule;
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class Manager implements \OCP\Encryption\IManager {
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/** @var array */
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protected $encryptionModules;
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/** @var \OCP\IConfig */
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protected $config;
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/**
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* @param \OCP\IConfig $config
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*/
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public function __construct(\OCP\IConfig $config) {
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$this->encryptionModules = array();
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$this->config = $config;
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}
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/**
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* Check if encryption is enabled
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*
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* @return bool true if enabled, false if not
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*/
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public function isEnabled() {
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$installed = $this->config->getSystemValue('installed', false);
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if (!$installed) {
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return false;
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}
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$enabled = $this->config->getAppValue('core', 'encryption_enabled', 'no');
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return $enabled === 'yes';
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}
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/**
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* Registers an encryption module
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*
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* @param IEncryptionModule $module
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* @throws Exceptions\ModuleAlreadyExistsException
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*/
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public function registerEncryptionModule(IEncryptionModule $module) {
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$id = $module->getId();
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$name = $module->getDisplayName();
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if (isset($this->encryptionModules[$id])) {
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$message = 'Id "' . $id . '" already used by encryption module "' . $name . '"';
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throw new Exceptions\ModuleAlreadyExistsException($message);
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}
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$defaultEncryptionModuleId = $this->getDefaultEncryptionModuleId();
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if (empty($defaultEncryptionModuleId)) {
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$this->setDefaultEncryptionModule($id);
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}
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$this->encryptionModules[$id] = $module;
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}
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/**
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* Unregisters an encryption module
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*
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* @param IEncryptionModule $module
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*/
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public function unregisterEncryptionModule(IEncryptionModule $module) {
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unset($this->encryptionModules[$module->getId()]);
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}
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/**
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* get a list of all encryption modules
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*
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* @return IEncryptionModule[]
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*/
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public function getEncryptionModules() {
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return $this->encryptionModules;
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}
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/**
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* get a specific encryption module
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*
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* @param string $moduleId
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* @return IEncryptionModule
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* @throws Exceptions\ModuleDoesNotExistsException
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*/
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public function getEncryptionModule($moduleId) {
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if (isset($this->encryptionModules[$moduleId])) {
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return $this->encryptionModules[$moduleId];
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} else {
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$message = "Module with id: $moduleId does not exists.";
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throw new Exceptions\ModuleDoesNotExistsException($message);
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}
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}
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/**
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* get default encryption module
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*
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* @return \OCP\Encryption\IEncryptionModule
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* @throws Exceptions\ModuleDoesNotExistsException
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*/
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public function getDefaultEncryptionModule() {
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$defaultModuleId = $this->getDefaultEncryptionModuleId();
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if (!empty($defaultModuleId)) {
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if (isset($this->encryptionModules[$defaultModuleId])) {
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return $this->encryptionModules[$defaultModuleId];
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} else {
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$message = 'Default encryption module not loaded';
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throw new Exceptions\ModuleDoesNotExistsException($message);
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}
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} else {
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$message = 'No default encryption module defined';
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throw new Exceptions\ModuleDoesNotExistsException($message);
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}
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}
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/**
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* set default encryption module Id
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*
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* @param string $moduleId
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* @return bool
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*/
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public function setDefaultEncryptionModule($moduleId) {
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try {
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$this->config->setAppValue('core', 'default_encryption_module', $moduleId);
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return true;
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} catch (\Exception $e) {
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return false;
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}
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}
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/**
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* get default encryption module Id
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*
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* @return string
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*/
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protected function getDefaultEncryptionModuleId() {
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try {
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return $this->config->getAppValue('core', 'default_encryption_module');
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} catch (\Exception $e) {
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return '';
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}
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}
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}
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